Morgana: "You will teach me a bad lesson!" Riddle: "Come on, you are already bad enough." Why use a golden finger to carefully change the plot, why do you have to be a fake lion in the snake yard? Maybe I like him because he is bad enough. Instead of whitewashing the bad guy, I would rather sing for him. Morgana is just a variable factor that Superstring Space inadvertently throws into the magical world, and she is cool, bad, and powerful.
Concept: A witch who inspires to become a contemporary Merlin